What is the value of (7.83×7.83-1.17×1.17)÷6.66
Thatsomeone:
6.66 is the answer
isn't it
ya 9 is correct
Answers
Answered by
2
The answer is 12.59 by calculation
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(7.83×7.83 - 1.17×1.17)÷6.66
{(7.83)*2 - (1.17)*2}÷6.66
We have identity
a*2 -b*2=(a+b)(a-b)
Here a=7.83 & b=1.17
So on putting values
(7.83+1.17)(7.83-1.17)÷6.66
(9)(6.66)÷6.66
Here 6.66 gets canceled
Therefore value is 9
{(7.83)*2 - (1.17)*2}÷6.66
We have identity
a*2 -b*2=(a+b)(a-b)
Here a=7.83 & b=1.17
So on putting values
(7.83+1.17)(7.83-1.17)÷6.66
(9)(6.66)÷6.66
Here 6.66 gets canceled
Therefore value is 9
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